Multi-physical-field scale prevention and removal test bed system for pipeline

Abstract

The invention discloses a multi-physical-field scale prevention and removal test bed system for a pipeline, and relates to a scale prevention and removal test bed system for the pipeline, which is characterized in that flowing liquid flows into a test pipeline through potential energy, so that the influence caused by scaling of a pump is eliminated; the pipeline between the upper water tank and the test pipeline is replaced before each test; a thermostat is additionally arranged in the lower water tank, and a constant-temperature water bath tank is additionally arranged outside the upper water tank, so that the influence of temperature on the test is eliminated; the water level switch is additionally arranged in the upper water tank to ensure that the water level in the upper water tank is consistent, so that the flow rate of liquid flowing into the test pipeline is the same. The test influence factors are controlled and eliminated, so that the accuracy and uniqueness of test data are ensured. The analyzed and detected water body returns to the circulating cooling system through the hose, the problems of water body pollution and sewage discharge cannot be generated in the whole descaling and anti-scaling process, and the surrounding environment and the water body cannot be damaged.

Description

Technical Field

[0001] The invention relates to a pipeline anti-scaling and descaling test bench system, in particular to a multi-physical field anti-scaling and descaling test bench system for pipelines. Background Art

[0002] In modern industrial production activities, water is the most commonly used cooling medium. In my country's water resource usage structure, industrial water consumption accounts for a significant proportion. In order to improve the efficiency of water resource use and reduce waste, many companies have adopted a cooling water recycling system. However, due to the inevitable water loss in the cooling process, as well as evaporation and replenishment over time, the recycled cooling water will gradually concentrate, resulting in an increase in its concentration multiple.

[0003] Although recycling cooling water saves considerable water resources, this practice also comes with some adverse consequences. As the concentration ratio increases, the magnesium ion (Mg 2+ ), calcium ions (Ca 2+ ), sulfate (SO2-4) and carbonate (CO2-3) and other hardness components concentration increases, which will cause hard scale to form on the inner wall of the pipe. The formation of hard scale not only slows down the flow rate of the fluid, but also may cause energy waste, aggravate corrosion and rust problems, accelerate the aging of equipment, and increase the safety hazards of equipment operation. Therefore, the management and treatment of circulating cooling water is particularly important to ensure the efficient operation of the system and extend the service life of the equipment.

[0004] Traditional descaling mainly uses mechanical cleaning + chemical agents, that is, when the circulating water system is shut down for maintenance, it is first soaked in a strong acid agent, and then cleaned by artificial high-pressure jet flushing. This method has low descaling efficiency and the effect is difficult to guarantee. The traditional anti-scaling method is mainly to add various scale inhibitors to the circulating water, which will increase the operating cost of the system and accelerate the aging and corrosion of the pipeline. Overall, these traditional methods are costly and can only be used for short-term descaling and anti-scaling. The discharge of high-concentration circulating water and flushing water will cause serious pollution and harm to the surrounding environment and water bodies. Therefore, it is necessary to choose a more efficient and environmentally friendly pipeline cleaning method. The existing environmentally friendly physical descaling technologies include electromagnetic descaling, permanent magnet descaling, ultrasonic descaling, etc.

[0005] Electromagnetic descaling and anti-scaling technology is an emerging pipeline descaling and anti-scaling technology. It changes the structure of ionic substances in water through electromagnetic fields to prevent them from forming hard scale on the surface of pipes or equipment. Electromagnetic descaling and anti-scaling technology has the following advantages: 1. Good cleaning effect: The electromagnetic field can penetrate the scale layer in the pipe and thoroughly clean the scale layer. The cleaning effect is better than traditional methods. 2. Low environmental pollution: Electromagnetic descaling and anti-scaling technology does not require the use of chemical cleaning agents, does not produce wastewater and waste liquid, and has little pollution to the environment. 3. Continuous cleaning: Electromagnetic descaling and anti-scaling technology does not take shutdown measures during maintenance, but achieves continuous cleaning through the circulation of cooling water to improve cleaning efficiency. 4. Easy operation: The operation of electromagnetic descaling and anti-scaling equipment is very simple. You only need to control the intensity and frequency of the electromagnetic field.

[0006] Permanent magnetic descaling and anti-scaling uses a permanent magnetic field to adsorb and aggregate magnetic particles in the water, thereby achieving the purpose of descaling. Ultrasonic descaling and anti-scaling uses the impact and shear force of ultrasound to act on the scale and dirt in the water, causing its particles or structures to break and rupture, thereby dispersing in the water and being removed. Permanent magnetic descaling and anti-scaling technology and ultrasonic descaling and anti-scaling technology have the following advantages: 1. No need to use chemical agents: Compared with traditional chemical descaling methods, permanent magnetic or ultrasonic descaling does not require the use of any chemical agents, avoiding water pollution and equipment corrosion, and is more environmentally friendly. 2. High efficiency and energy saving: The energy consumed by permanent magnetic or ultrasonic descaling equipment during operation is relatively low, and does not require a large amount of electricity or other energy, thereby saving energy and reducing emissions. 3. Simple operation and maintenance: The structure of permanent magnetic or ultrasonic descaling equipment is relatively simple, the operation and maintenance costs are low, and there is no need to frequently replace filter materials or add chemical agents, which reduces manpower and material costs. 4. Good long-term stability: Permanent magnetic or ultrasonic descaling equipment has no wearing parts, does not need to be replaced frequently, and has a long service life and good stability. 5. Wide range of applications: Permanent magnet or ultrasonic descaling technology is suitable for various water qualities, including industrial waste water, tap water, circulating water, etc., and has strong applicability.

[0007] Yang Qizhi and others proposed an electromagnetic descaling device, which uses an alternating electromagnetic field generated by an AC power supply, a coil and a shielding film to treat scale-prone ions and decompose scale on the inner wall of the pipe, thereby increasing the range of action and avoiding magnetic energy loss. Wang Yipu and Tian Shuliang invented an electromagnetic ultrasonic descaling and anti-scaling device and method for straight pipe sections, which uses grooves, magnetic rings and electromagnetic coils to generate eddy currents and high-frequency vibrations on the inner surface of the pipe section, aiming to eliminate liquid scaling and improve instrument accuracy. Wu Tiangang and Wang Aibing's variable frequency descaling instrument uses a non-ferromagnetic pipe with wires wrapped around it and connected to a variable frequency circuit board to form a variable frequency electromagnetic field to remove and prevent scale, emphasizing a simple and practical structure. Ma Ning designed a water pipe variable frequency descaling device, whose variable frequency circuit and electromagnetic coil enhance the electromagnetic induction field strength in the water pipeline and strengthen the descaling effect. Dong Chengkang and others developed a variable frequency pulse electronic descaling device for water use systems. Under the control of a microprocessor, random frequency pulses act on calcium carbonate and magnesium crystals in the water, causing their structure to change and making it less likely to form hard scale. Xu Feng's pipeline descaling device uses solar panels to power the system. It uses high-frequency electromagnetic heating and ultrasonic cavitation to centrally treat the scale in the fluid, reducing the tendency of subsequent pipeline scaling. Bai Jun and others designed a variable frequency electromagnetic anti-scaling and descaling device for offshore oilfield submersible electric pump units, which solved the scaling problem in the production process and extended the life of the equipment. Yang Xiaoming's variable frequency electric pulse anti-scaling and descaling device includes multiple units, outputs adjustable PWM pulses to achieve a green and environmentally friendly descaling method. Li Jianhua and others' variable frequency electromagnetic anti-scaling and descaling device uses a digital integrated circuit frequency converter to treat different water qualities to ensure scale prevention and descaling. Zhang Xuquan's electromagnetic water treatment device has the advantages of multiple effects in one, such as anti-scaling, sterilization and rust prevention. The corrosion-resistant winding electronic descaling device developed by Li Jingwu and others prevents scale formation through the electromagnetic field generated by the electrode ring, improving durability. The industrial system adaptive variable frequency descaling device developed by Liu Huan and others adapts to various working conditions and generates an electromagnetic field with continuously changing frequencies through microcomputer control and algorithms.

[0008] The inventions mainly focus on the use of electromagnetic technology to prevent and remove scale in pipes, equipment or systems. Different inventions differ in the way the electromagnetic field is generated, the application scenarios, auxiliary technologies (such as high-frequency pulses, ultrasound, etc.) and the specific functions achieved. In addition, the existing pipeline electromagnetic anti-scaling and descaling devices, pipeline permanent magnetic anti-scaling and descaling devices and pipeline ultrasonic anti-scaling and descaling devices are all for industrial production use, and there is no pipeline anti-scaling and descaling test bench device for scientific research use. Various test equipment are also disposable and cannot be reused, which has certain limitations. In addition, the pumps, pipelines and other devices in the circulation system will have a greater impact on the test results after running for a long time. Summary of the invention

[0009] The purpose of the present invention is to provide a multi-physics field anti-scaling and descaling test bench system for pipelines, in which the flowing liquid flows into the test pipeline through potential energy, thereby eliminating the influence of pump scaling; the pipeline between the upper water tank and the test pipeline is replaced before each test; a thermostat is added in the lower water tank, and a constant temperature water bath is added outside the upper water tank, thereby eliminating the influence of temperature on the test; a water level switch is added in the upper water tank to ensure that the water level line in the upper water tank remains consistent, thereby ensuring that the flow rate of the liquid flowing into the test pipeline is the same. The above test influencing factors are controlled and eliminated, thereby ensuring the accuracy and uniqueness of the test data. During the entire descaling and anti-scaling process, no water pollution and sewage discharge problems will occur, and no harm will be caused to the surrounding environment and water bodies.

[0010] The objective of the present invention is achieved through the following technical solutions: A multi-physical field anti-scaling and descaling test bench system for pipelines, the system comprising an agitator, a water level switch, a hanging plate, an upper water tank, a constant temperature water bath, a pipeline, a test iron pipeline, an ultrasonic transducer, an electromagnetic anti-scaling and descaling controller, an excitation coil, a permanent magnetic anti-scaling and descaling controller, a flow meter, a lower water tank, a thermostat, a peristaltic pump, and a lifting platform; the excitation coil of the electromagnetic anti-scaling and descaling device is wound around the outer wall of the test iron pipeline, and both ends of the coil are connected to the output terminals of the electromagnetic anti-scaling and descaling controller; the ultrasonic transducer is installed at the inlet of the test pipeline; the permanent magnetic anti-scaling and descaling device is installed on the outside of the test pipeline; The test process is as follows: after the liquid in the lower water tank is heated by the thermostat, the peristaltic pump pumps the heated water in the lower water tank into the upper water tank, the solution in the upper water tank is fully stirred by the agitator, and flows into the test iron pipe through the pipe under the action of potential energy, and then flows into the lower water tank under the action of electromagnetic anti-scaling, permanent magnetic electromagnetic anti-scaling or ultrasonic anti-scaling to achieve water circulation; the hanging pieces in the upper and lower water tanks test the scaling amount of the upper and lower water tanks respectively, and at the same time, the water level switch keeps the water level in the upper water tank consistent during the test, the temperature of the mixed liquid in the upper water tank of the constant temperature water tank does not lose, the flow meter records the speed at which the solution flows out of the test pipe, and the lifting platform changes the height of the upper water tank.

[0011] The multi-physical field anti-scaling and descaling test bench system for pipelines, the electromagnetic anti-scaling is to use gravitational potential energy to make the water in the upper water tank flow to the lower test iron pipe through a soft pipe, the periphery of the iron pipe is wrapped with an energized coil, and the two ends of the coil are connected to a signal controller. The signal controller generates an electromagnetic field to perform electromagnetic anti-scaling and descaling on the flowing liquid flowing into the iron pipe, and the electromagnetically treated liquid flows into the lower water tank through a hose.

[0012] The multi-physical field anti-scaling and descaling test bench system for pipelines, the permanent magnet anti-scaling is to use gravitational potential energy to make the water in the upper water tank flow to the lower test iron pipe through a soft pipe. A permanent magnet is installed on the outside of the iron pipe. The permanent magnet controls and adjusts the descaling process by connecting to a signal controller to perform permanent magnet anti-scaling and descaling. The liquid treated with the permanent magnetic field flows into the lower water tank through a hose.

[0013] The multi-physical field anti-scaling and descaling test bench system for pipelines is characterized in that a constant temperature water bath is arranged in the upper water tank, and a thermostat is arranged in the lower water tank; at the same time, in order to ensure that the potential energy of the water drops each time is the same, a water level switch is added to the upper water tank; in order to accurately obtain the desired test results, a hanging plate is placed in each of the upper and lower water tanks; in order to measure the flow rate in the test pipeline, a flow meter is installed at the end of the test pipeline.

[0014] The multi-physical field anti-scaling and descaling test bench system for pipelines is characterized in that the peristaltic pump pumps water in the lower water tank back into the upper water tank to achieve water circulation.

[0015] The advantages and effects of the present invention are: 1. The present invention ensures the uniqueness of the test data: In order to meet the repeatability required by the experiment, the present invention allows the flowing liquid to flow into the test pipe through potential energy, thereby eliminating the influence of pump scaling; the pipe between the upper water tank and the test pipe is replaced before each test; a thermostat is added to the lower water tank, and a constant temperature water bath is added outside the upper water tank, thereby eliminating the influence of temperature on the test; a water level switch is added to the upper water tank to ensure that the water level line in the upper water tank remains consistent, thereby ensuring that the flow rate of the liquid flowing into the test pipe is the same. The above test influencing factors are controlled and eliminated, thereby ensuring the accuracy and uniqueness of the test data.

[0016] 2. The present invention has multiple test methods: The present invention includes three basic physical field anti-scaling and descaling methods. It can use a physical field alone to conduct pipeline anti-scaling and descaling tests, or two or more physical fields can be used to conduct pipeline anti-scaling and descaling tests, which increases the multiplicity of the test. The present invention has a total of 6 physical field combinations to conduct pipeline anti-scaling and descaling tests.

[0017] 3. The present invention is simple, environmentally friendly and safer: The system and method of the present invention are simple to operate. The water after analysis and detection is returned to the circulating cooling system through a hose. The entire descaling and anti-scaling process will not cause water pollution and sewage discharge problems, and will not cause harm to the surrounding environment and water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a multi-physical field anti-scaling and descaling test bench system for pipelines according to the present invention. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings.

[0020] like Figure 1 As shown, the present invention is a multi-physical field anti-scaling and descaling test bench system for pipelines, which mainly includes: a stirrer 1, a water level switch 2, a hanging plate 3, an upper water tank 4, a constant temperature water bath 5, a pipeline 6, a test pipeline 7, an ultrasonic transducer 8, an electromagnetic anti-scaling and descaling controller 9, an excitation coil 10, a permanent magnetic anti-scaling and descaling controller 11, a flow meter 12, a lower water tank 13, a thermostat 14, a peristaltic pump 15, and a lifting platform 16. The excitation coil 10 of the electromagnetic anti-scaling and descaling device is wound around the outer wall of the test iron pipeline 6, and the two ends of the excitation coil 10 are connected to the output terminals of the electromagnetic anti-scaling and descaling controller 9. The ultrasonic transducer 8 is installed at the entrance of the test pipeline 7. The permanent magnetic anti-scaling and descaling device 11 is installed on the outside of the test pipeline 7. After the liquid in the lower water tank 13 is heated by the thermostat 14, the peristaltic pump 15 pumps the heated water in the lower water tank into the upper water tank 4. The solution in the upper water tank 4 is fully stirred under the action of the agitator 1, and flows into the test pipe 7 through the iron pipe 6 under the action of potential energy, and flows into the lower water tank 13 under the action of the electromagnetic anti-scaling and descaling controller 9, the permanent magnetic electromagnetic anti-scaling and descaling controller 11 or the ultrasonic anti-scaling and descaling, to realize water circulation; the hanging pieces in the upper and lower water tanks respectively test the scaling amount of the upper and lower water tanks, and at the same time, the water level switch 2 will ensure that the water level in the upper water tank can remain consistent during the test. The constant temperature water tank 5 ensures that the temperature of the mixed liquid in the upper water tank 4 will not be lost, the flow meter 12 records the speed at which the solution flows out of the test pipe 7, and the lifting platform 16 can change the height of the upper water tank.

[0021] The test process is as follows: Electromagnetic descaling and anti-scaling: The water in the upper water tank flows through the soft pipe to the lower test iron pipe through the gravitational potential energy. The outer periphery of the iron pipe is wrapped with an energized coil, and the two ends of the coil are connected to the signal controller. The signal controller generates an electromagnetic field to perform electromagnetic descaling on the flowing liquid flowing into the iron pipe. The electromagnetically treated liquid flows into the lower water tank through the hose.

[0022] Permanent magnet descaling and anti-scaling: The water in the upper water tank flows through the soft pipe to the lower test iron pipe through the gravitational potential energy. A permanent magnet is installed on the outside of the iron pipe. The permanent magnet controls and adjusts the descaling process by connecting to the signal controller, thereby performing permanent magnet descaling and anti-scaling. The liquid treated with the permanent magnetic field flows into the lower water tank through the hose.

[0023] Ultrasonic descaling and scale prevention: The water in the upper water tank flows to the lower test iron pipe through the soft pipe by the gravity potential energy. An inclined transducer (ultrasonic generator) is installed at the entrance of the iron pipe. The transducer generates an ultrasonic field by connecting to the signal controller to perform ultrasonic descaling on the flowing liquid flowing into the iron pipe. The ultrasonically treated liquid flows into the lower water tank through the hose.

[0024] At the same time, a peristaltic pump is added between the lower water tank and the upper water tank to pump the water in the lower water tank back to the upper water tank to realize water circulation; to ensure that the ion solution in the upper water tank is fully diffused in the water, an agitator is installed on the upper water tank; to ensure that the circulating water has a stable temperature condition, a constant temperature water bath is added to the upper water tank, and a thermostat is added to the lower water tank; at the same time, to ensure that the potential energy of the water is the same each time it drops, a water level switch is added to the upper water tank; to accurately obtain the desired test results, a hanging plate is placed in each of the upper and lower water tanks; to measure the flow rate in the test pipeline, a flow meter is installed at the end of the test pipeline.

Claims

1. A multi-physics field anti-scaling and descaling test bench system for pipelines, characterized in that: The system comprises an agitator (1), a water level switch (2), a hanging plate (3), an upper water tank (4), a constant temperature water bath (5), a pipeline (6), a test pipeline (7), an ultrasonic transducer (8), an electromagnetic anti-scaling and descaling controller (9), an excitation coil (10), a permanent magnetic anti-scaling and descaling controller (11), a flow meter (12), a lower water tank (13), a thermostat (14), a peristaltic pump (15), and a lifting platform (16); the excitation coil (10) of the electromagnetic anti-scaling and descaling device is wound around the outer wall of the test iron pipeline (6), and both ends of the excitation coil (10) are connected to the output terminals of the electromagnetic anti-scaling and descaling controller; the ultrasonic transducer (8) is installed at the inlet of the test pipeline (7); and the permanent magnetic anti-scaling and descaling controller (11) is installed on the outer side of the test pipeline (7); The test process is as follows: after the liquid in the lower water tank (13) is heated by the thermostat (14), the peristaltic pump (15) pumps the heated water in the lower water tank into the upper water tank (4); the solution in the upper water tank (4) is fully stirred under the action of the stirrer (1), and flows into the test pipe (7) through the pipe (6) under the action of potential energy, and then flows into the lower water tank (13) under the action of the electromagnetic anti-scaling and descaling device (9), the permanent magnetic electromagnetic anti-scaling and descaling controller (11) or the ultrasonic anti-scaling and descaling device, thereby realizing water circulation; the hanging pieces in the upper and lower water tanks respectively test the scale amounts of the upper and lower water tanks, and at the same time, the water level switch (2) keeps the water level in the upper water tank consistent during the test process, the temperature of the mixed liquid in the upper water tank (4) of the constant temperature water tank (5) does not lose, the flow meter (12) records the speed at which the solution flows out of the test pipe (7), and the lifting platform (16) changes the height of the upper water tank.

2. A multi-physics field anti-scaling and descaling test bench system for pipelines according to claim 1, characterized in that: The electromagnetic anti-scaling method uses gravitational potential energy to make the water in the upper water tank flow to the lower test iron pipe through a soft pipe. An energized coil is wrapped around the periphery of the iron pipe, and the two ends of the coil are connected to a signal controller. The signal controller generates an electromagnetic field to perform electromagnetic anti-scaling and descaling on the flowing liquid flowing into the iron pipe. The electromagnetically treated liquid flows into the lower water tank through a hose.

3. A multi-physical field anti-scaling and descaling test bench system for pipelines according to claim 1, characterized in that: The permanent magnet anti-scaling method uses gravitational potential energy to make the water in the upper water tank flow to the lower test iron pipe through a soft pipe. A permanent magnet is installed on the outside of the iron pipe. The permanent magnet controls and adjusts the descaling process by connecting to a signal controller to perform permanent magnet anti-scaling and descaling. The liquid treated with the permanent magnetic field flows into the lower water tank through a hose.

4. A multi-physics field anti-scaling and descaling test bench system for pipelines according to claim 1, characterized in that: The upper water tank is provided with a constant temperature water bath, and a thermostat is provided in the lower water tank; at the same time, in order to ensure that the potential energy of the water is the same each time it drops, a water level switch is added to the upper water tank; in order to accurately obtain the desired test results, a hanging piece is placed in each of the upper and lower water tanks; in order to measure the flow rate in the test pipe, a flow meter is installed at the end of the test pipe.

5. A multi-physics field anti-scaling and descaling test bench system for pipelines according to claim 1, characterized in that: The peristaltic pump draws water from the lower water tank back into the upper water tank to achieve water circulation.

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